I am trying to set up the domain mapping since this morning, and I'm getting crazy.
The documentation doesn't seem to reflect the way the plugin actually works (plug-in page, and Otto's page both seem outdated). Or is it just me?
Anyway, I have two main problems.
1. When I try to add a new domain in Settings/Domain, it just doesn't work. Comes back to the page, nothing added, nothing change.
For Cpanel users
If your domain uses the nameservers on your hosting account you should follow these instructions. If the nameservers are elsewhere change the A record or CNAME as documented above. Add a wildcard subdomain/virtual host record to your site's DNS record in Web Host Manager (WHM). If you do not have access to WHM, you must email your web host and ask them to make this one change for you. Should be no problem:
Go to "Edit DNS Zone" and select the domain of your WPMU installation and click "Edit".
Below "Add New Entries Below This Line", enter in the first box (Domain) an asterisk: "*".
The second box, TTL, should be "14400".
The third box should be "IN".
Select A Record Type from the drop down "A".
And in the last box, paste in the IP address of your website/network.
I use cPanel, and I have one IP for the server, one domain name from the web hosting, and one domain name I added for the main site. Knowing this, could someone translate the instructions above to something a normal human being can understand?
Or point me to an updated instruction set?
Sorry, but doing anything with WordPress has never be such a mess than domain mapping. :-(